Aw Gabriel!
I used to kill anything I even LOOKED at and then one day my whole attitude on life changed...plants that I tend seem to thrive now.
Get to know your soil and look at almanacs for local planting and cutting schedules that coincide with the waning and waxing of the moon!
Best thing I could have done for myself was to really learn how to handle plant life!
Treat plants as if they are living creatures and they will respond as such
Moni